bio 207 lab 4: phylum porifera, cnidaria and annelida

spicules

small needle-like structures of calcium carbonate or silica used to identity sponges

Class Hexactinellida

glass-like siliceous spicules

Class Demospongiae

siliceous spicules

Class Calcarea

calcareous spicules

spongin

a type of collagen protein secreted by cells known as spongocytes, provide flexibility, found in Class Demospongiae

Microciona prolifera

red beard sponge

polyp

sessile cnidarian body form

medusae

motile cnidarian body form

Astrangia danae

star coral

Turbularia crocea

sea strawberries

Metridium senile

brown or frilled anemone

Aurelia aurita

moon jelly

Cyanea capillata

lion’s mane or red jelly

Nereis virens

sandworm

Pectinaria gouldii

trumpet worm

Chaetopterus variopedatus

parchment worm

Glycera dibranchiata

blood worm